Spinal screw
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The dash-dash broken lines show environmental structure that forms no part of the claimed design. The dot-dash broken lines represent the boundaries of the claimed design.
Claims
The ornamental design for a spinal screw, as shown and described.
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Type: Grant
Filed: May 24, 2017
Date of Patent: Mar 24, 2020
Assignee: WILTROM CO., LTD. (Zhubei, Hsinchu County)
Inventors: Yi-Chun Su (Zhubei), Chieh-Feng Lu (Zhubei), Huang-Chien Liang (Zhubei)
Primary Examiner: Barbara Fox
Assistant Examiner: Mary Shannon Malley
Application Number: 29/605,148